Apparatus for recording bell of like signals, especially applicable to mines.



J RUSSELL. APPARATUS FOR RECORDING BELL 0E LIKE SIGNALS, ESPECIALLYAPPLICABLE TO MINES.

APPLIOATION FILED JAN. 27, 1908.

Patented Nov. 2, 1909.

6 SHEETS-SHEET 1.

Patented Nov. 2, 1909. 6 SHEETS-SHEET 2.

J. RUSSELL.-

APPLICATION FILED JAN. 27, 1908.

I APPARATUS FOR RECORDING BELL 0R LIKE SIGNALS, ESPECIALLY APPLIGABLE T0MINES.\ A

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J. RUSSELL. ABPARATUS FOR RECORDING BELL 0R LIKE SIGNALS, ESPECIALLYAPPLICABLE TO MINES.

. APPLICATION FILED JAN. 27, 1908. 988,51 6.

Patented. Nov. 2, 1909.

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J. RUSSELL.

APPARATUS FOR RECORDING BELL OR LIKE SIGNALS, ESPECIALLY APPLICABLE TOMINES.

APPLICATION IILED JAN. 27, 1908.

Patented Nov. 2, 1909.\

6 SHEETSSHEET 4.

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J. RUSSELL. APPARATUS FOR RECORDING BELL 0R LIKE SIGNALS, ESPECIALLYAPPLICABLE TO MINES.

APPLICATION FILED JAN. 27, 1908.

6 SHEETS-SHEET 5.

Patented Nov. 2, 1909.

munzw. a GRAHAM 0a.. momutuosumnzns. wAsnwnfoN. n. c.

J. RUSSELL APPARATUS FOR RECORDING BELL 0R LIKE SIGNALS, ESPECIALLYAPPLIGABLE T0 MINES.

- APPLICATION FILED JAN. 27, 1908. V 7

938,516, r Patented Nov. 2, 1909.

6 SHEETSSHEET 6.

UNITED STATES PATENT OFFICE.

' JOHN RUSSELL, 0F LANGLAAGTE, NEAR JOHANNESBURG, TRANSVAAL, ASSIGNOR 0FONE-HALF TO JOHN HUG-H MILLIGAN, OF LANGLAAGTE, TRANSVAAL.

APPARATUS FOR RECORDING BELL OR LIKE SIGNALS, ESPECIALLY APPLICABLE TOMINES.

Specification of Letters Patent.

Patented Nov. 2, 1909;

Application filed. January 27, 1908. Serial No. 412,875.

To all whom it may concern:

Be it known that LJOHN RUSSELL, a subj ect of the King of Great Britain,and resident of Langlaagte, near Johannesburg, Transvaal, have inventedcertain new and useful Improvements in Apparatus for Itecording Bell orLike Signals,Especially Applicable to Mines, of which the following is aspecification.

This invention relates to apparatus for recording bell or like signalsand is especially designed for mine use.

The invention is applicable for recording the bell signals transmittedfrom the stations or other points in the shaft of a mine to the engineroom and vice versa. By its use an accurate record may be kept of allsignals transmitted and received between these points for futurereference. The exact time the signals are transmitted may also beascertained from the recording tape so that a complete record of thesignals is thereby obtained.

As adapted for use with electrical bell systems where separate circuitsare provided in the shaft-s for the outward and return signals theapparatus is preferably constructed to provide recording mechanism forboth circuits, one of the recording pens being actuated through themedium of coils interposed in the one circuit and the other pen throughthe medium of coils interposed in the other circuit. The apparatus mayalso be adapted for knock signals and for this purpose the knocker linewhich is pulled to transmit the knock signal to or from the engine room,may be arranged to open and close the circuit actuating the recordingdevice.

The apparatus may be conveniently located in the engine room or othersuitable position and be suitably inclosed to prevent unauthorizedaccess to the recording tape, or the instrument might be located in aprivate room and placed under lock and key to prevent it being tamperedwith and so that the record would be available as evidence in case ofaccidents due to wrong signals having been given or the signalstransmitted not having been complied with.

The invention will be described by aid of the accompanying drawings inwhich- Figure 1 represents a side elevation of the apparatus with aportion of the recording drum or roller broken away. Fig. 2 is anelevation of the apparatus as seen from the other side. Fig. 3 is a planview. Fig. 4 is an end elevationas seen with one of the plates (2)removed, and Fig. 5 is an end elevationfrom the other end of theapparatus showing the clock dial and hands in dotted lines. Fig. 6 is anenlarged detail of the sliding piece 60, lever 63, spring 59 and halfnut 58. Fig. 7 is a diagrammatic View showing the circuit connectionsand Fig. 8 is a portion of the record sheet with a record thereon suchas the device is adapted to make.

In the drawings 1 represents a base plate which may be employed forfixing the in strument on any suitable stand or support. At each end ofthis plate 1 are arranged two vertical and parallel plates 2, whichcarry the clock mechanisms.

3 are pins forming distance pieces between the plates 2. These distancepieces have screwed on their extremities the retaining nuts 4. Theplates 2 are secured by means of the set-screws 5, which project throughholes in the bottom plate 1 and engage screw-threaded holes tapped inthe pins 3.

6 is the main spring arbor or spindle which is arranged longitudinallyof and above the base plate 1 and extends through the vertical plates 2at both ends thereof. The main springs 7 of both mechanisms are attachedto this spindle 6 and that portion of the spindle extending below theroller may be inclosed by a tube 8 secured to the vertical plates 2 bymeans of the screws 9 engaging flanges 10 on the ends of the tube. Theone clockwork mechanism consists of the main spring 7, which aspreviously explained is attached at one extremity to the arbor ofspindle 6, and at the other end to the main spring or power wheel 11.

28 is the ratchet wheel fixed on the main spring arbor 6, 29 the pawlengaging the teeth thereof, and 30 the spring for the pawl both fixed tothe power wheel 11, for preventing unwinding of the main spring 7 Thepower wheel 11 revolubly mounted on the main spring arbor 6 gears thepinion 12 driving through its arbor 13 the toothed wheel 14. This lattertoothed wheel drives through pinion 15 andarbor 16, the toothed wheel17, the latter gearing the escape wheel pinion 18. The ordinary clockescapement or balance consists of the balance Wheel 19, and spring onthe staff or spindle 21, escape wheel 22 on its spindle 23, and thepallet or pawl :24, spindle 25 and lever 26 to which rocking motion isimparted from the balance Wheel staff or spindle 21. The regulatorcomprises the arm 27 pivoted to one of the plates 2 at 28 andconstructed with a hooked branch 29 engaging the balance spring 20.

31 is the recording drum or roller around which passes the tape or sheetof paper on which the record is made. The spindle 32 of this rollerprojects through a hole in the two inner parallel plates 2 which formbearings for it and on the inside it has fixed to it a pinion 33. Thespindle 32 beyond the pinion 33 is supported in a bearing formed by abracket 34 fixed to the plate on the inside. lVith this pinion 33 meshesthe toothed wheel 14 of the clockwork.

In the mechanism above described the wheels for driving the hands aredispensed with but if preferred they may be provided and the dial beprovided in connection with this clockwork. In Fig. 5 I show the dial 35and hands 36 of the timepiece in dotted lines arranged in connectionwith the other clockwork. The other clockwork mechanism comprises themain spring 7, which as previously stated is fixed on the common mainspring arbor or spindle 6 and attached to the main spring wheel 37driving through pinion 38 the toothed wheel 39, which latter meshes withthe pinion 40 (corresponding to the pinion on the other end of therecording drum or roller spindle). 41 is a pinion on a spindle 42 ingear with the power wheel 37. The spindle 42 extends to the front of thevertical plate 2 and on it is tixed a pinion 43. This pinion 43 drivesthe toothed wheel 44 through pinion 45. The latter toothed wheel 44meshes with pinion 40, which drives the minute hand. The toothed wheel44 has attached to it pinion 47 which meshes the toothed wheel 48 whichdrives the hour hand. In this mechanism a balance is dispensed with, thebalance employed in connection with the other clockwork serving toregulate the beats of the timepiece.

49 is the ratchet wheel fixed on the main spring arbor 6, 50 the pawland 51 the pawl spring, which prevent the unwinding of the main spring7.

By the arrangement above described both ends of the recording drum orroller 31 are driven synchronously from both main spring wheels 11, 37,so that the power of both springs 7 is available to operate therecording instrument.

To the base plate 1 at one end is fixed bracket 52. This bracket 52, isnot attached at the other end so as to allow of the record ing tape orsheet being placed on or removed from the drum or roller 31. The bracket52 I has fixed to it in proximity to its ends, two vertical plates 53,54. In the vertical plates is journaled the screw-threaded spindle 55which serves for traversing the pens 56 longitudinally of the recordingdrum or roller 31. This spindle 55 is driven by means of the toothedwheel 57 from the wheel 14.

58 is the half nut which is adapted to be placed in engagement with thescrewthreaded spindle The nut 58 is attached to a flat spring 59 whichfixed to a sliding piece 60. See Fig. 6.

61, G2, are two rods arranged parallel with the screw-threaded spindleThese rods (51, 62, support the sliding piece 60. For the purpose oiputting the nut 53 out of engagement with the spindle I provide an armor lever (33 hinged to the top of the sliding piece (50. This lever 63has attached to it hooks or projections 64. To these hooks orprojections (34 are attached the upper ex tremities of two arms ('35which at their lower ends are attached to a piece 66 encircling thevertical member of the sliding piece 60. This piece 66 is raised andlowered by movement of the lever (53. 'hen the piece (36 is raised itdraws the spring 59 inward and so throws the nut 58 out of engagementwith the spindle 55, and when it is lowered it allows the spring 55) tomove the nut 58 into engagement with the spindle 55. On the pin (37 onwhich the lever 63 is tulcrumed are pivoted the arms 68, G9, which carrythe recording pens 5G. The record ing pens are shown consisting of theglass vessels 7O fitted at the lower ends with the caps or covers 71carrying the small tubes 72 through which the ink may pass to therecording points. The arms (38, (59, as shown in Fig. 3, are constructedat their ends in the term of two curved spring members which clasp thevessels 70. The glass vessels are constructed tunnel shape or fitted atthe top with detachable tunnels 73 for facilitating the insertiontherein ot the ink or marking fluid. The arms or levers 68, (39,carrying the pens 56, are each constructed with a downwardly extendingarm or projection 74, 75, beyond the pivot (37, the one 74, extendingsome distance below other 75.

In the vertical plates 53, 54, are carried two parallel rods 7 6, 77,one for each of the downwardly extending arms 74, 75, of the levers (38,69. To the ends of these rods 7 (3, 77, are attached spiral springs 7 S,which are attached at their other ends to pins or projections 79 on theplates 53, 54. The rods 76, 77, are movable in slots 80 formed in theplates 53, 54, toward and away from the arms 74, 75.

Fixed to the plates 53, 54, by means of the set screws 81 is a carrier82 which may be made of Wood or other suitable material for the coils83, 84.

the I 85 are brackets fixed to the carrier 82 for supporting the innerpair of coils 83. The brackets 85, which may be made of metal areconnected by means of the metal strip 86 (through the medium of whichthey may be fixed by the screws 87 to the carrier 82) which may alsoserve for electrically connecting the coils 83. The coils 83 are sodisposed that their cores 88 are opposite the rod 77. The pair of coils83 are interposed in one of the electric bell circuits in a manner wellunderstood. 89 are two other brackets fixed by means of the screws 90 tothe carrier 82. The brackets 89 carry the other pair of coils 84 whichare arranged at such a height that the cores 91 are opposite the otherrod 76.

92 is a plate connecting the brackets 89 so that the brackets 89 andplate 92 may serve for placing the two coils 84 in electricalconnection. The pair of coils 84; are interposed in the other electricbell circuit.

93, 94:, are the terminals for one pair of coils and 95, 96 theterminals for the other pair of coils. Fig. 7 clearly shows the circuitconnections.

In the operation of the instrument it is preferable that the vessel 70for one of the pens .56 be filled with ink or marking fluid of adifferent color to the other so that the marks made thereby will bereadily distinguishable. The sheet of paper or tape, which as previouslyexplained is preferably in the form of an endless band, is passedthrough the opening provided at 97 between the end of bracket 52 and oneof the clockworks.

The margin or margins of the tape a portion of which is shown in Fig. 8are preferably marked with hours, minutes and seconds and with lighttransverse lines (crossing the ninety six parallel lines) and the tapeis adjusted on the surface of the roller 31 in relation to the pens tocorrespond to the time indicated by the timepiece. The margins of thetape are perforated and on one end of the roller 31 are provided pins 98which engage the perforations to insure movement of the tape with theroller. The tape having been adjusted and assuming that both pairs ofcoils 83, 84;, are operatively interposed, the one in the electriccircuit from the shaft to the engine room and the other from the engineroom to the shaft, then the closing of the circuit in the transpen isoperated in the same manner.

mission of a signal, say through the pair of coils 83, will attract therod 77 and the latter disengaging the arm 75 will allow thecorresponding pen 56 to strike the surface of the recording tape. Eachtime the bell is rung in transmitting a signal the circuit is closed andthe pen marks the surface of the tape. When the circuit is opened therod 77 is moved by its springs 78 into contact with the arm 75 whichraises the pen off the surface of the recording tape. The other Themarks made by the one pen are indicated by the letter as and the marksmade by the other pen are indicated by the letter 3 in Fig. 8.

V hat I claim as my invention and desire to protect by Letters Patentis 1. Apparatus of the character described comprising in combination acylinder which serves for moving the record strip, mechanism forrotating said cylinder at a suitable rate of speed, an electric circuitfor the outward signals and another circuit for the return signals, arecord marking device for each circuit, means for traversing the markingdevices longitudinally of the cylinder said means comprising a screwthreaded spindle engaging a nut connected with the marking devices,means for disconnecting said nut from said spindle, a pair of coilsinterposed in each circuit, a slidable rod for each circuit, said rodsbeing adapted when attracted by their magnets to allow the markingdevice to mark the record strip and means for returning said rods andmarking devices to their normal position as set forth.

2. Apparatus of the character described comprising in combination acylinder which serves for moving the record strip, springs for drivingsaid cylinder at both ends at a suitable rate of speed, a timepieceactuated by said springs, a marking device, means for traversing saidmarking device longitudi nally of the cylinder, a coil interposed in theelectric circuit, and means actuated by said coil for actuating themarking device to mark the record strip, for each stroke of the signal,as set forth.

In witness whereof I have hereunto set my hand in the presence of twosubscribing witnesses this 28th day of October 1907.

JOHN RUSSELL.

Witnesses:

CHAS. OVENDALE, R. OVENDALE.

